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J Arthroplasty. 2015 Dec;30(12):2208-18. doi: 10.1016/j.arth.2015.06.059. Epub 2015 Jul 2.

Accuracy of Component Positioning in 1980 Total Hip Arthroplasties: A Comparative Analysis by Surgical Technique and Mode of Guidance.

Author information

1
American Hip Institute, Westmont, Illinois; Hinsdale Orthopaedics, Hinsdale, Illinois; Loyola University Chicago Stritch School of Medicine, Maywood, Illinois.
2
American Hip Institute, Westmont, Illinois; Mayo Clinic, Jacksonville, Florida.
3
American Hip Institute, Westmont, Illinois.
4
American Hip Institute, Westmont, Illinois; Hinsdale Orthopaedics, Hinsdale, Illinois.

Abstract

The purpose of this multi-surgeon study was to assess and compare the accuracy of acetabular component placement, leg length discrepancy (LLD), and global offset difference (GOD) between six different surgical techniques and modes of guidance in total hip arthroplasty (THA). A total of 1980 THAs met inclusion criteria. Robotic- and navigation-guided techniques were more consistent than other techniques in placing the acetabular cup into Lewinnek's safe zone (P<0.005 and P<0.05, respectively). Robotic-guided surgery was more consistent than other techniques in placing the acetabular component within Callanan's safe zone (P<0.005). No statistically significant differences were found between groups in the frequency of patients with excessive LLD. Clinically significant differences between groups were not found in the frequency of patients with excessive GOD. Level of Evidence: IV.

KEYWORDS:

accuracy; component placement; hip arthroplasty; multi surgeon; robotic-guided

PMID:
26282499
DOI:
10.1016/j.arth.2015.06.059
[Indexed for MEDLINE]

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